Table 2 List of environmental predictors used for habitat modelling and mapping at 100 m resolution.
From: EUNIS habitat maps: enhancing thematic and spatial resolution for Europe through machine learning
Type | Predictor | Data source |
|---|---|---|
Climate | BIO1: Annual mean temperature (°C) | CHELSA V2.174 Resolution: 1 km Temporal range: 1981–2010 Spatial range: Europe |
BIO4: Temperature seasonality | ||
GDD5: Growing degree days heat sum above 5 °C (°C) | ||
BIO12: Annual sum of precipitation (kg · m²/yr) | ||
BIO15: Precipitation seasonality | ||
SCD: Snow covered days (day count) | ||
SWE: Snow water equivalent (kg · m²/yr) | ||
Topography | SLOPE: EU DEM slope (degrees) | Copernicus DEM v1.175, upscaled to 100 m, terrain variables generated using SAGA-GIS v5. Resolution: 30 m |
ASPECT: EU DEM aspect (degrees) | ||
TPI_LANDFORM: Landform classification based on the topographic position index, generated using tool ta_morphometry. (10 classes) | ||
Hydrography | DistToWater: Distance to inland water (m) | EU-Hydro river network polygon76 Resolution: 100 m |
DistToCoast: Distance to sea coastline (m) | EU-Hydro coastal polygon76 Resolution: 100 m | |
Geology | PARMADO: Dominant parent material class (27 classes) | European soil database (ESDB)77 Resolution: 1 km |
DR: Depth to rock (m) | ||
Soil | AWC: Available Water Capacity for the topsoil fine earth fraction | LUCAS topsoil physical properties78 Resolution: 500 m |
BULK_DENSITY: Bulk density of the topsoil (kg/dm3) | ||
COARSE: Coarse fragment (%) content in topsoil | ||
SAND/SILT/CLAY: Sand, silt, and clay proportions (%) | ||
pH: Soil acidity | LUCAS topsoil chemical properties79 Resolution: 500 m | |
CARBONE: Organic carbon content (g/kg) | ||
NITROGEN: Nitrogen content (g/kg) | ||
CACO3: Calcium carbonates (g/kg) | ||
CEC: Cation exchange capacity (cmol/kg) |
